Elie amoueoux



(No Model.)

RAMOUROUX.

FEED WATER ALARM PoR STBAM'BOILBRS.

No.338,015. J Patented Mar. 16, 1886.

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UNITED STATES i' ATENT Fries.

ELIE AMOUROUX, OF PARIS, FRANCE, ASSIGNOR TO ALFRED LA ROCHE AND ANTOINE JULIEN CHAMPION, BOTH OF SAME PLACE.

FEED-WATER ALARM FOR STEAM-BOILERS.

SPECIFICATION forming part of Letters Patent No. 338,015, dated March 16, 1856.

Application filed January 1G, 1856. Serial No. 18:27.17. (No model.)

T a/ZZ whom 2lb may concern,.-

Be it known that I, ELIE AMoURoUX, of the city of Paris, France, have invented anew and Improved Fced-Vater Alarm for Steam-Boil1 5 ers, of which the following is a full, clear, and

exact description.

All those connected with steam-engines are aware of the great value of an alarm-whistle for preventing explosions in steamboilers;

1o but owing to the various improvements in boilers and the exigencies of their construction it has been found impossible in many cases to provide them with a float, upon which, as is well known, the action of the alarm depends,

i 5 and from this cause a great number of boilers are deprived of such a safeguard and are entirely dependent for their safety upon the vigilance of the stoker or driver, and are always a source of possible danger bot-h to life and zo property in their vicinity.

The object of the present invention is to provideaboiler-alarm which, although based on the same physical principles as heretofore, shall be arranged entirely outside the boiler without any internal fittings, and which may, moreover, be placed at a distance from the said boiler at any part of the works, or even at several points, if desired.

rIhe apparatus, which is of very simple con- 3c struction, is illustrated in the accompanying drawings, wherein Figure l represents a longitudinal elevation, and Fig. 2 a transverse section of the same online A B of Fig. l. Fig. 3 is a vertical crosssection of part of the apparatus,showing a modification. Fig. 3is is a horizontal section of the curtain Z, which is shown in Fig. 3.

R is a small container placed at the lowwater level X-that is to say, at a level below 4o which the water in the boiler would not fall without causing an explosion-and connected to boiler C in the same manner as a watergage-that is to say, by means of two tubes, T T', in the same vertical plane and in constant 4 5 communication the one with the steam and the other with the water. In this case, however, the tubes, instead of being rigid like those of a water-gage, are made flexible by giving them a spiral form, as shown at H, or in other man- 5o ner, for the purpose of enabling the container R to rise and fall without the necessity of having jointed connections. It is upon this principle of elasticity of its connections and the difference in weight of the water in the container consequent on the variations in the level of the water in the boiler that the apparatus is based. The container R is also attached to the end of a lever, L, in the same manner as the weight of a safety-valve, to which, moreover, it bears an exact resenl- 6o blance and acts in identically the same Inanner, as will be seen hereinafter. This lever is caused by a suitable arrangement to act on the valve of the stearn-whistle, so as to hold the same closed when the containerR is of initial weight-that is to say, s0 long as the water it contains remains at the same level-and allows said valve to fully open immediately the level falls-that is to say, when the weight of the container is reduced. O

As will be seen, the apparatus acts both as a water-gage and a safety-valve, consisting simply of a valve loaded by the weight of the water in a container placed, as before mentioned, at the low-waterlevel X. Thus,if the water in the boiler should fall below this point, as the container is in constant communication therewith, the water which it contains will pass out to a corresponding extent, and the weight will gradually fall, thus allowing the 8o valve to open and steam to escape and sound the whistle.

In order to render the action more certain, the arm P, Fig. 2, is extended at Q beyond the fulcrurn X2, upon which is mounted an adjustable weight, V. Theposition of this weight is adjusted, when the water is at its lowest level and steam is up, by sliding the weight on the arm until the steam-pressure opens the valve. As soon as the feed is started, the wa- 9oter rises in the container It at the same time as in the boiler, and the weight of the water in the container closes the valve, which is the normal position ofthe apparatus.

In marineboilers, where the water-level is liable to be affected by the rolling and pitching of the vessel, it is preferred, in order not to affect the proper working of the apparatus, to cover the water-inletorifice of pipe T from the boiler with two perforated caps, S S', (see roo Fig. 2,) which retard the inflow and outow of the Water. I may also with the same object employ the arrangement represented in Fig. 3, which consists in simply covering the water-inlet to the ltube T' with a curtain or cap, Z, whereby the iiuctuations at the surface of the water will not affect the Water contained Within said curtain, and prevent any sudden inflow or outflow of Water. The curtain or cap T is open at both ends and semicircular in cross-section, as shown in Fig. 3b, but the cross-section may be of any other convenient form.

rlhe apparatus represented in the drawings is given merely by way of example, as it will be understood that the form and dimensions may be Varied to suit the particular circumstances of each case.

I do not claim a swinging vvessel having a pivotal connection such as is shown in Pat- 2o l ent No. 237,929.

I claimv A feedwateralarm apparatus for steamboilers, vconsisting in the combination of a container, R, with the two flexible tubes T T', 25

having spiral parts H H', which allow of said v ELIE AMOUROUX.

Witnesses:

RoB'r. M. HooPER, ALBERT, MOREAU. 

